changing internal rep. from CR macro to ‘\n’
fixed problem with newline in the parser
translate CR and LF into \n in the paste
warning to NaN in the line drawing
add newfig()
fix insufficient scroll (without understanding)
add scroll in paste instead
remove unnecessary win_normalize
translate CR in reading files,
minor fixes: scrolling, line with NaN not drawn, allow STRING in imbalance() and serialize(), new_canvas